<!DOCTYPE html>
<html>

<head>
  <title>1213</title>
  <meta charset="utf-8">
</head>

<body>
  <div id="app">
    <el-input v-model="input" placeholder="请输入内容"></el-input>
  </div>
  <!-- <script src="https://cdn.jsdelivr.net/npm/vue@2.5.16/dist/vue.js"></script> -->
  <script src="https://cdn.bootcss.com/vue/2.5.13/vue.min.js"></script>
  <link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">
  <!-- 引入组件库 -->
  <script src="https://unpkg.com/element-ui/lib/index.js"></script>
  <script type="text/javascript">
    var app = new Vue({
      el: '#app',
      data: {
        message: 'Hello Vue!',
        input: null,
      }
    })

  </script>

</body>

</html>